score = 78
if score >= 90:
    print('优秀')
elif score >= 80:
    print('良好')
elif score >= 70:
    print('中等')
elif score >= 60:
    print('及格')
else:
    print('不及格')

weight = float(input('请输入你的体重，单位kg：'))
if weight >= 90:
    print('肥胖')
elif weight >= 70:
    print('偏胖')
elif weight >= 50:
    print('正常')
else:
    print('偏瘦')

